He'd be in the running for unanimous MVP. Mike Trout in 2012 is the only rookie to ever have gotten to 10 rWAR, and he didn't win the MVP only becuase a bunch of writers got all weak-kneed about Cabrera's triple crown. 2nd in all time rookie WAR is Dick Allen's 8.8 in '64, followed by Judge's 8.0 in '17.
Fred Lynn won the MVP and ROY in '75 with a 7.4-win season.